English verb conjugation
CAN OVERSTUDY

Regular verb: overstudy - overstudied - overstudied

Affirmation

Simple form	V-ing form
I can overstudy you can overstudy she can overstudy we can overstudy you can overstudy they can overstudy	I can be overstudying you can be overstudying she can be overstudying we can be overstudying you can be overstudying they can be overstudying
Perfect	V-ing perfect
I can have overstudied you can have overstudied she can have overstudied we can have overstudied you can have overstudied they can have overstudied	I can have been overstudying you can have been overstudying she can have been overstudying we can have been overstudying you can have been overstudying they can have been overstudying

Negation

Simple form	V-ing form
I cannot overstudy you cannot overstudy she cannot overstudy we cannot overstudy you cannot overstudy they cannot overstudy	I cannot be overstudying you cannot be overstudying she cannot be overstudying we cannot be overstudying you cannot be overstudying they cannot be overstudying
Perfect	V-ing perfect
I cannot have overstudied you cannot have overstudied she cannot have overstudied we cannot have overstudied you cannot have overstudied they cannot have overstudied	I cannot have been overstudying you cannot have been overstudying she cannot have been overstudying we cannot have been overstudying you cannot have been overstudying they cannot have been overstudying

Interrogative form

Simple form	V-ing form
can I overstudy? can you overstudy? can she overstudy? can we overstudy? can you overstudy? can they overstudy?	can I be overstudying? can you be overstudying? can she be overstudying? can we be overstudying? can you be overstudying? can they be overstudying?
Perfect	V-ing perfect
can I have overstudied? can you have overstudied? can she have overstudied? can we have overstudied? can you have overstudied? can they have overstudied?	can I have been overstudying? can you have been overstudying? can she have been overstudying? can we have been overstudying? can you have been overstudying? can they have been overstudying?

Interro-negative form

Simple form	V-ing form
can I not overstudy? can you not overstudy? can she not overstudy? can we not overstudy? can you not overstudy? can they not overstudy?	can I not be overstudying? can you not be overstudying? can she not be overstudying? can we not be overstudying? can you not be overstudying? can they not be overstudying?
Perfect	V-ing perfect
can I not have overstudied? can you not have overstudied? can she not have overstudied? can we not have overstudied? can you not have overstudied? can they not have overstudied?	can I not have been overstudying? can you not have been overstudying? can she not have been overstudying? can we not have been overstudying? can you not have been overstudying? can they not have been overstudying?